Integrated: 8283894: Intrinsify compress and expand bits on x86

[Jatin Bhateja]

On Mon, 2 May 2022 08:19:53 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

> Summary of changes:
> 
> - Patch intrinsifies following newly added Java SE APIs
>   - Integer.compress
>   - Integer.expand
>   - Long.compress
>   - Long.expand
>   
> - Adds C2 IR nodes and corresponding ideal transformations for new operations.
> - We see around ~10x performance speedup due to intrinsification over X86 target. 
> - Adds an IR framework based test to validate newly introduced IR transformations.
> 
> Kindly review and share your feedback.
> 
> Best Regards,
> Jatin

This pull request has now been integrated.

Changeset: f347ff99
Author:    Jatin Bhateja <jbhateja at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/f347ff9986afbc578aca8784be658d3629904786
Stats:     1133 lines in 20 files changed: 1103 ins; 18 del; 12 mod

8283894: Intrinsify compress and expand bits on x86

Reviewed-by: psandoz, sviswanathan, jrose, kvn

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PR: https://git.openjdk.java.net/jdk/pull/8498